package D240523;

public class TestMsb {
    public static void main(String[] args) {
        MyStringBuilder myStringBuilder = new MyStringBuilder("abc");
        myStringBuilder.print();
        myStringBuilder = myStringBuilder.append("xyz");
        myStringBuilder.print();
        myStringBuilder = myStringBuilder.append("123").append("aaa");
        myStringBuilder.print();
    }
}
